Screening cosmetic compositions containing a hydrophilic agent comprising at least one sulphonic acid radical

ABSTRACT

The invention relates to screening cosmetic compositions containing at least one hydrophilic agent which screens ultraviolet radiation and contains at least one sulphonic acid radical --SO 3  H and at least one amino-functional silicone derivative. 
     Application to the protection of skin and hair against the effects of ultraviolet radiation.

This application is a Rule 371 continuation of PCT/FR94/00751, filed onJun. 21, 1994.

This application is a Rule 371 continuation of PCT/FR94/00751, filed onJun. 21, 1994.

The present invention relates to substantive and water-resistantcosmetic compositions which are intended to protect the skin and hairfrom ultraviolet radiation. It relates more particularly to substantiveand water-resistant cosmetic compositions containing a hydrophilic UVscreening agent comprising at least one sulphonic acid radical. Theinvention also relates to their use for the protection of skin and hairagainst ultraviolet radiation.

It is well known that luminous radiation with wavelengths of between 280nm and 400 nm allow the human skin to tan, and that rays withwavelengths of between 280 and 320 nm, known by the term UV-B, causeerythemas and skin burns which may damage the development of the tan;this UV-B radiation must therefore be screened.

It is also known that UV-A rays, with wavelengths of between 320 and 400nm, which cause the skin to tan, are capable of harming the latter,especially in the case of a sensitive skin or a skin which iscontinually exposed to solar radiation. In particular, UV-A rays cause aloss of skin elasticity and the appearance of wrinkles leading topremature ageing. They promote the triggering of the erythemal reactionor accentuate this reaction in certain subjects and can even be thecause of phototoxic or photoallergic reactions. It is thereforedesirable to screen the UV-A radiation as well.

In the context of the present invention, substantivity may becharacterized by the hydrophobic nature of the screening combination,that is to say its non-dissociation in waters water resistance may bedefined by the stability over time, after showering or bathing, of theprotection index in UVA and/or UVB.

Proposals have already been made to improve the substantivity andwater-resistance of screening compositions by formulating them eitherwith polymers (see in particular patent U.S. Pat. No. 5,041,281 andpatent application JP-A-05 032 532), or in a vehicle comprising awater-in-oil emulsion in the presence of emulsifiers having a HLB(hydrophilic-lipophilic balance) varying from 1 to 7 (see in particularpatent U.S. Pat. No. 5,047,232).

These two techniques make it possible effectively to enhance the waterresistance of the compositions when they contain lipophilic sunscreenagents. However, it is not the case with the compositions containinghydrophilic sunscreen agents, especially acids, since the latterdisappear in water, when bathing in the sea or in a swiping pool, underthe shower or when engaging in water sports; thus the anti-suncompositions which contain them, alone or combined with lipophilicsunscreen agents, no longer provide the initial protection desired, whenthe substrate (skin or hair) to which they have been applied comes intocontact with water.

In patent application EP A-0275719, an attempt was made to impartsubstantivity and water-resistance to anti-sun compositions containingacid screening agents, by combining these agents with a fatty amine.

This type of solution is unsatisfactory in certain cases, because of theimpossibility of combining certain acidic screening agents with fattyamines and, also, because fatty amines may cause contact allergies, asis described in the work "Adverse reactions to cosmetics" (Anton deCornelis de Groot--Ed. Rijksuniversiteit Groningen, 1988) chapter 5, p.170 et seq.

Now, however, the Applicant has discovered a novel screening cosmeticcomposition of the type employing a hydrophilic screening agentcomprising at least one sulphonic acid group, which overcomes thedisadvantages of the prior art and which, moreover, is of enhancedsubstantivity and water-resistance.

The protection index or PI may be expressed by the ratio of the periodof irradiation necessary to reach the erythematogenic threshold with theUV screening agent to the period which is necessary to reach theerythematogenic threshold without a UV screening agent.

The enhancement of these properties is particularly advantageous in thecase of anti-sun compositions in the form of oil-in-water emulsions.

In the case of oil-in-water or water-in-oil emulsions, the hydrophilicscreening agents are present in the aqueous phase and the lipophilicscreening agents in the fatty phase. However, oil-in-water emulsions areregarded much more highly by the consumer than water-in-oil emulsions,because of their pleasant feel (similar to water) and their presentationin the form of a non-greasy cream or milk; however, they also lose theireffectiveness in UV protection more easily when they come into contactwith water, this loss of protection index by removal of the hydrophilicsunscreen agent with water being all the more marked because thelipophilic-hydrophilic screening combination which is present in thecomposition is synergic with respect to the protection index.

The subject of the present invention is therefore a screening cosmeticcomposition, characterized in that it comprises, in a cosmeticallyacceptable vehicle, at least one hydrophilic agent which screensultraviolet radiation and comprises at least one sulphonic acid radical(--SO₃ H) and at least one amino-functional silica derivative.

It should be noted here that the present invention is not suitable forcompositions which are to contain hydrophilic screening agentscontaining a carboxyl radical, since the persistence in water of thistype of screening agent is not enhanced by carrying out the combinationin accordance with the invention.

Examples of acidic filters containing at least one SO₃ H group are thesulphonic derivatives of 3-benzylidene-2-bornanone and, in particular,those of the following formulae (I), (II), (III), (IV), and (V):##STR1## in which: Z denotes a group ##STR2## n is equal to 0 or is aninteger between 1 and 4 (0≦n≦4) R₁ represents one or more linear orbranched alkyl or alkoxy radicals which are identical or different andcontain about 1 to 4 carbon atoms.

A particularly preferred compound of formula I is that corresponding ton=0: benzene-1,4-[di(3-methylidenecamphor-10-sulphonic)] acid. ##STR3##in which: R₂ denotes a hydrogen atom, a halogen atom, an alkyl radicalcontaining about 1 to 4 carbon atoms or a --SO₃ H radical.

R₃ and R₄ denote a hydrogen atom or a --SO₃ H radical, at least one ofthe radicals R₂, R₃ or R₄ denoting the --SO₃ H radical, and R₂ and R₄being unable simultaneously to denote a --SO₃ H radical.

Particular examples which may be mentioned are the following compoundsof formula II in which:

R₂ denotes the --SO₃ H radical in the para position ofbenzylidenecamphor and R₂ and R₄ each denote a hydrogen atom, that is tosay 4-(3-methylidenecamphor) benzenesulphonic acid.

R₂ and R₄ each denote a hydrogen atom and R₃ denotes a --SO₃ H radical,that is to say 3-benzylidenecamphor-10-sulphonic acid.

R₂ denotes a methyl radical in the para position of thebenzylidenecamphor, R₄ denotes a --SO₃ H radical and R₃ denotes ahydrogen atom, that is to say2-methyl-5-(3-methylidenecamphor)benzenesulphonic acid.

R₂ denotes a chlorine atom in the para position of thebenzylidenecamphor, R₄ denotes a --SO₃ H radical and R₃ denotes ahydrogen atom, that is to say 2-chloro-5-(3-methylidenecamphor)benzenesulphonic acid.

R₂ denotes a methyl radical in the para position of thebenzylidenecamphor, R₄ denotes a hydrogen atom and R₃ denotes a --SO₃ Hradical, that is to say 3-(4-methyl) benzylidenecamphor-10-sulphonicacid. ##STR4## in which: R₅ and R₇ denote a hydrogen atom, a hydroxylradical or a linear or branched, alkyl or alkoxy radical containingabout 1 to 8 carbon atoms, at least one of the radicals R₅ and R₇representing a hydroxyl, alkyl or alkoxy radical,

R₆ and R₈ denote a hydrogen atom or a hydroxyl radical, at least one ofthe radicals R₆ and R₈ denoting the hydroxyl radical, with the provisothat, when R₅ and R₈ denote a hydrogen atom and R₆ denotes a hydroxylradical, R₇ does not denote an alkoxy radical or a hydrogen atom.

Particular examples which may be mentioned are the following compoundsof formula (III) in which:

R₅ is a methyl radical, R₆ is a hydrogen atom, R₇ is a tert-butylradical and R₈ is a hydroxyl radical, that is to say(3-t-butyl-2-hydroxy-5-methyl) benzylidenecamphor-10-sulphonic acid.

R₅ is a methoxy radical, R₆ is a hydrogen atom, R₇ is a tert-butylradical and R₈ is a hydroxyl radical, that is to say(3-t-butyl-2-hydroxy-5-methoxy) benzylidenecamphor-10-sulphonic acid.

R₅ and R₇ each denote a tert-butyl radical, R₆ denotes a hydroxylradical and R₈ denotes a hydrogen atom, that is to say(3,5-di-tert-butyl-4-hydroxy) benzylidenecamphor-10-sulphonic acid.##STR5## in which: R₉ denotes a hydrogen atom, a linear or branchedalkyl radical containing about 1 to 18 carbon atoms, a linear orbranched alkenyl radical containing about 3 to 18 carbon atoms, a group##STR6## or else a divalent radical: --(CH₂)_(m) -- or --CH₂ --CHOH--CH₃--

n being an integer between 1 and 6 (1≦n≦6) and m being an integerbetween 1 and 10 (1≦m≦10).

R₁₀ denotes a hydrogen atom, an alkoxy radical containing about 1 to 4carbon atoms or a divalent radical --O--, which is linked to the radicalR₉ when the latter is also divalent,

q denotes an integer equal to 1 or 2, it being understood that, if q isequal to 2, R₉ must denote a divalent radical,

Y and Y' denote a hydrogen atom or a --SO₃ H radical, and at least oneof these radicals Y or Y' is different from hydrogen.

Particular examples which may be mentioned are the following compoundsof formula (IV) in which:

q is equal to 1, Y and R₁₀ each denote a hydrogen atom, R₉ denotes amethyl radical and Y' in position 3 denotes a --SO₃ H radical, that isto say 2-methoxy-5-(3-methylidenecamphor) benzenesulphonic acid.

q is equal to 1, Y denotes a --SO₃ H radical, Y' denotes a hydrogen atomand R₁₀ denotes a divalent radical --O-- which is linked to R₉ denotinga methylene radical, that is to say3-(4,5-methylenedioxy)benzylidenecamphor-10-sulphonic acid.

q is equal to 1, Y denotes a --SO₃ H radical, both Y' and R₁₀ denote ahydrogen atom and R₉ denotes a methyl radical, that is say3-(4-methoxy)benzylidenecamphor-10-sulphonic acid.

q is equal to 1, Y denotes a --SO₃ H radical, Y' denotes a hydrogenatom; R₉ denotes a methyl radical and R₁₀ denotes a methoxy radical,that is to say 3-(4,5-dimethoxy) benzylidenecamphor-10-sulphonic acid.

q is equal to 1, Y denotes a SO₃ H radical, both Y' and R₁₀ denote ahydrogen atom; R₉ denotes a n-butyl radical, that is to say3-(4-n-butoxy) benzylidenecamphor-10-sulphonic acid.

q is equal to 1, Y denotes a --SO₃ H radical, Y' denotes a hydrogenatoms R₉ denotes a n-buryl radical and R₁₀ denotes a methoxy radical,that is to say 3-(4-n-butoxy-5-methoxy) benzylidenecamphor-10-sulphonicacid. ##STR7## in which: R₁₁ denotes a hydrogen atom, a linear orbranched, alkyl or alkoxy radical containing about 1 to 6 carbon atomsor a --SO₃ H radical,

R₁₂ denotes a hydrogen atom or a linear or branched, alkyl or alkoxyradical containing about 1 to 6 carbon atoms,

R₁₃ denotes a hydrogen atom or a --SO₃ H radical,

at least one of the radicals R₁₁ and R₁₃ denoting a --SO₃ H radical,

X is an oxygen or sulphur atom or a group --NR--, R, being a hydrogenatom or a linear or branched alkyl radical containing about 1 to 6carbon atoms.

A particular example of formula (V) which may be mentioned is: thecompound in which X denotes a --NH-- radical, R₁₁ denotes a --SO₃ Hradical, and both R₁₂ and R₁₃ denote a hydrogen atom, that is to say2-[4-(camphormethylidene) phenyl]benzimidazole-5-sulphonic acid.

The compounds of structures (I), (II), (III), (IV), (V) are described,respectively, in the patent U.S. Pat. No. 4,585,597 and the patents FR2,236,515, 2,282,426, 2,645,148, 2,430,938, 2,592,380.

The screening agent containing sulphonic groups may also be a sulphonicderivative of benzophenone, of formula (VI): ##STR8## in which: R₁₄ andR₁₅, which are identical or different, denote either a hydrogen atom ora linear or branched alkyl radical containing about 1 to 8 carbon atoms.

a, b and c, which are identical or different, are equal to 0 or 1.

A particular example of formula (VI) which may be mentioned is:2-hydroxy-4-methoxybenzophenone-5-sulphonic acid (compound of formula VIin which a, b and c are equal to zero, and R₁₅ denotes a methylradical).

The screening agent containing sulphonic groups may alternatively be asulphonic derivative of benzimidazole, of formula: ##STR9## in which: Xdenotes an oxygen atom or a --NH-- radical

R₁₆ denotes a hydrogen atom, a linear or branched, alkyl or alkoxyradical containing about 1 to 8 carbon atoms or a group of formula##STR10## in which X' represents an oxygen atom or a --NH-- radical.

Particular examples which may be mentioned are the following compoundsof formula (VII) in which:

X denotes the --NH-- radical and R₁₆ denotes a hydrogen atom:2-phenylbenzimidazole-5-sulphonic acid.

X denotes the --NH-- radical and R₁₆ denotes the group of formula (VIII)in which X' denotes the --NH-- radical:benzene-1,4-di(benzimidazol-2-yl-5-sulphonic) acid.

X denotes an oxygen atom and R₁₆ denotes the group of formula (VIII) inwhich X' denotes an oxygen atom:benzene-1,4-di(benzoxazol-2-yl-5-sulphonic) acid.

The compounds of formula VI and VII are known compounds which can beprepared according to conventional methods described in the prior art.

The amino-functional silicone derivative which is used in the context ofthe present invention is useful as a hydrophobic compound whichneutralizes the sulphonic acid function of the hydrophilic screeningagent, neutralization being obtained with a quantity of siliconederivative which is compatible with the realization of a cosmeticcomposition.

According to a preferred embodiment of the invention, theamino-functional silicone derivative has an amine index of greater thanapproximately 0.25 meq/g. Still more preferably this index is greaterthan approximately 0.50.

In the composition according to the invention the amino-functionalsilicone derivative may be a silicone derivative comprising at least oneprimary, secondary or tertiary amine function.

Examples of such compounds which may be mentioned are:

(a) silicones carrying a NH₂ radical, such as, for example:

polydimethylsiloxanes (PDMS) α,ω-hydroxylated on the principal chain,which are named in the CTFA dictionary 1991, 4th ed. as AMODIMETHICONE;examples are Silicone Fluid L650 sold by WACKER SILICONE having an amineindex of 2.7 to 3.2 meq/gram, Silicone Fluid L655 from WACKER SILICONEhaving an amine index of 1.3 to 1.45 meq/gram, and Silicone Fluid L656from WACKER SILICONE having an amine index of 1.2 to 1.4 meq/gram.

polydimethylsiloxanes (PDMS) α,ω-alkylated on the principal chain, forinstance the α,ω-trimethylated PDMSs such as those corresponding to thename TRIMETHYLSILYLAMODIMETHICONE in the CTFA dictionary 1991, 4th ed.,among which particular mention may be made of X₂ -8260 sold by thecompany DOW CORNING with an amine index of 2.8 meq/grams or SLM 55051/3sold by the company WACKER having an amine index of 0.47 meq/gram, andthe dimethyl-C₁₂ -alkyl PDMSs such as SLM 23056/1 sold by the companyWACKER having an amine index of 1.2 meq/gram.

α,ω-trimethylated polymethylalkyl (fatty) arylalkylsiloxane, such as SLM23056/2 sold by the company WACKER having an amine index of 1.3meq/gram.

PDMSs obtained by copolymerization of a difunctional silane and amonomer CH₃ --Si(OR)₂ --(CH₂)₃ --NH₂ in which R is an ethyl and/ormethyl radical, such as RHODORSIL Huile PL 1300 sold by the companyRHONE POULENC, having an amine index of 0.92 meq/gram.

PDMSs in which the NH₂ radical is in the α and ω position on an alkylsite, such as the products TEGOMER A-SI 2120, with an amine index of1.95 meq/gram and TEGOMER A-SI 2320 with an amine index of 0.86meq/gram, both sold by the company GOLDSCHMIDT.

(b) silicones carrying a --NH-- radical, such as the productscorresponding to the name AMINOBISPROPYLDIMETHICONE in the CTFAdictionary 1991, 4th ed., among which there may be mentioned UCARESILICONE ALE 56 sold by the company UNION CARBIDE, with an amine indexof 0.86 meq/gram,

(c) the silicones carrying a radical ##STR11## for instance the compoundof structure: ##STR12## which is a known compound (RN 56039-74-8) withan amine index equal to 2.58 meq/gram.

Examples of preferred screening cosmetic compositions comprise thefollowing combinations of hydrophilic UV screening agent containing oneor more sulphonic acid functions and an amino-functional siliconederivative:

sulphonic derivative of 3-benzylidene-2-bornanone of formula (I) inwhich n=0 (benzene-1,4-(di(3-methylidenecamphor-10-sulphonic)) acid),neutralized to the extent of 100% by a polydimethylsiloxane obtained bycopolymerization of a difunctional silane and a monomer CH₃ --Si(OR)₂--(CH₂)₃ --NH₂ in which R is ethyl and/or methyl (Rhodorsil Huile PL1300 sold by Rhone-Poulenc--amine index 0.92 meq/g).

sulphonic derivative of benzophenone of formula (VI) in which a, b and care equal to 0, and R₁₅ denotes a methyl radical(2-hydroxy-4-methoxybenzophenone-5-sulphonic acid: Uvinul MS 40 sold byBASF), neutralized to the extent of 100% by the abovementionedamino-functional silicone derivative Rhodorsil Huile PL 1300.

sulphonic derivative of benzimidazole of formula (VII) in which Xdenotes the --NH-- radical R₁₆ denotes a hydrogen atom(2-phenylbenzimidazole-5-sulphonic acid: Eusolex 232 sold by MERCK),neutralized to the extent of 100% by a polydimethylsiloxane of theAMODIMETHICONE type, sold under the name Silicone Fluid L656 by WackerSilicone (amine index of 1.2 to 1.4 meq/g).

The hydrophilic UV screening agent comprising at least one sulphonicacid radical is generally present in the screening compositionsaccording to the invention at a total concentration of betweenapproximately 0.2 and 10%, and preferably approximately 0.5 and 5%,relative to the total weight of the composition.

The amino-functional silicone derivative is preferably present in thescreening compositions in a proportion which is necessary for theneutralization, to the extent of at least 50%, of the sulphonic acidfunctions of the hydrophilic screening agent.

Even more preferably, this quantity corresponds to the neutralization of100% of the sulphonic acid functions.

The cosmetic compositions according to the invention may contain one ormore additional hydrophilic or lipophilic sunscreens which are active inUVA and/or UVB which are different, of course, from the acidichydrophilic screening agents of the invention.

These additional screening agents are preferably chosen from cinnamicderivatives such as, for example, 2-ethylhexyl p-methoxycinnsmate,salicylate derivatives such as, for example, 2-ethylhexyl salicylate andhomomenthyl salicylate, camphor derivatives such as, for example,3-(4-methylbenzylidene) camphor, triazine derivatives such as2,4,6-tris[p-(2'-ethylhexyl-1'-oxycarbonyl)anilino]-1,3,5-triazine,benzophenone derivatives such as 2-hydroxy-4-methoxybenzophenone,dibenzoylmethane derivatives such as4-tert-butyl-4'-methoxydibenzoylmethane, β,β-diphenylacrylatederivatives such as 2-ethylhexyl α-cyano-β,β-diphenylacrylate,p-inobenzoic acid derivatives such as, for example, octylpara-dimethylaminobenzoate, menthyl anthranilate, and the polymerscreening agents and silicone screening agents described in theapplication WO-93-04665.

The cosmetic compositions according to the invention may also containcoated or non-coated metal oxide nanopigments such as, for example,titanium oxide, iron oxide, zinc oxide or cerium oxide nanopigments.

Coated or non-coated metal oxide nanopigments are described, inparticular, in the application EP 0518,772.

The compositions of the invention may additionally contain cosmeticadjuvants which are chosen from fats, organic solvents, nonionicthickeners, emollients, antioxidants, opacifying agents, stabilizers,silicones other than those already described, anti-foaming agents,moisturizing agents, vitamins, fragrances, preservatives, nonionicsurfactants, fillers, sequestering agents, nonionic polymers,propellants, basifying or acidifying agents, dyes or any otheringredient which is commonly used in cosmetics.

The fats may consist of an oil or a wax or a mixture thereof, petroleumjelly, paraffin, lanolin, hydrogenated lanolin, acetylated lanolin; theyalso comprise fatty acids, fatty alcohols such as lauryl alcohol, cetylalcohol, myristal alcohol, stearyl alcohol, palmityl alcohol, oleylalcohol and 2-octyldodecanol, fatty acid esters such as glycerolmonostearate, polyethylene glycol monostearate, isopropyl myristate,isopropyl adipate, isopropyl palmirate and octyl palmirate, thebenzoates of C₁₂ -C₁₅ fatty alcohols (Finsolv TN from FINETEX), myristylalcohol polyoxypropylenated with 3 moles of propylene oxide (WITCONOLAPM from WITCO), and C₆ -C₁₈ fatty acid triglycerides such as thetriglycerides of caprylic/capric acid.

The oils are chosen from animal, vegetable, mineral or synthetic oilsand, in particular, hydrogenated palm oil, hydrogenated castor oil,liquid petroleum, paraffin oil, Purcellin oil (stearyl octanoate),silicone oils and isoparaffins.

The waxes are chosen from animal, fossil, vegetable, mineral orsynthetic waxes. Those which may be mentioned in particular arebeeswaxes, carnauba waxes, candelilla wax, sugar-cane wax, Japan wax,ozocerites, montan wax, microcrystalline waxes, paraffins, and siliconewaxes and resins.

The organic solvents which may be mentioned include lower polyols andalcohols such as ethanol, isopropanol, propylene glycol, glycerol andsorbitol.

Thickeners, which are preferably nonionic, may be chosen from guar gumsand modified or non-modified celluloses, such as hydroxypropylated guargum, cetylhydroxyethylcellulose, silicas such as, for example, BentoneGel MiO sold by the company NL INDUSTRIES or Veegum Ultra sold by thecompany POLYPLASTIC.

The compositions of the invention are prepared in accordance withtechniques which are well known to those skilled in the art. Whenpreparing the composition it is possible to form a paste from the acidicscreening agent and the amino-functional silicone derivative and then toadd the other constituents of the composition and homogenize them. It isalso possible to react them beforehand, for example by addition of asolution of the amino-functional silicone derivative in ethanol ordichloromethane to an aqueous solution of the acidic screening agent,followed by evaporation of the solvent, and to introduce the product ofthis reaction into the composition.

The cosmetic composition of the invention may be used as a protectivecomposition for the human skin or hair against ultraviolet radiation, asan anti-sun composition or as a make-up product.

This composition may be presented, in particular, in the form of anemulsion such as a cream, a milk or a cream gel, a powder, a solid stickand, optionally, may be packaged as an aerosol and may be presented inthe form of a mousse or spray.

When the composition is an emulsion, the aqueous phase of the latter maycomprise a nonionic vesicle dispersion prepared according to knownprocesses (Bangham, Standish and Watkins, J. Mol. Biol. 13, 238 (1965),FR 2315991 and FR 2416008.

Another subject of the present invention is a method for cosmetictreatment of the skin or hair which is intended to protect them againstthe effects of UV radiation and which consists in applying to the skinor hair an effective quantity of a cosmetic composition as definedabove.

When the cosmetic composition according to the invention is used for theprotection of human skin against UV radiation or as an anti-suncomposition, it may be presented in the form of a suspension ordispersion in solvents or fats, in the form of a nonionic vesicledispersion or else in the form of an emulsion such as a cream or a milk,in the form of an ointment, gel, solid stick, aerosol mousse or spray.

When the cosmetic composition according to the invention is used for theprotection of hair, it may be presented in the form of a shampoo,lotion, gel, emulsion, nonionic vesicle dispersion or hair lacquer andmay constitute, for example, a rinsing composition to be applied beforeor after shampooing, before or after dyeing or bleaching, before, duringor after a permanent-waving or hair-straightening operation, as atreating or styling lotion or gel, as a lotion or gel for blow drying orsetting, or a composition for the permanent waving, straightening,dyeing or bleaching of hair.

When the composition is used as a make-up product for the eyelashes,eyebrows or skin, such as a skin treatment cream, a foundation, alipstick, an eyeshadow, a blusher, a mascara or a liner, also calledeyeliner, it may be presented in a solid or pasty form, in an anhydrousor aqueous form, such as oil-in-water or water-in-oil emulsions,nonionic vesicle dispersions or else suspensions.

One other subject of the invention is a screening combination whichcomprises, on the one hand, a hydrophilic screening agent containing atleast one sulphonic acid radical as described above and, on the otherhand, an amino-functional silicone derivative as also described above.

The amino-functional silicone derivative is preferably present in aproportion which is necessary for the neutralization of at least 50% ofthe sulphonic acid functions of the hydrophilic screening agent.

Even more preferably the amino-functional silicone derivative is presentin a proportion which is necessary for the neutralization of 100% of thesulphonic acid functions of the hydrophilic screening agent.

Another subject of the present invention is the use of the abovecombination for the preparation of cosmetic compositions.

The invention will be illustrated more fully by the examples below,which should not be considered as applying any limitation whatsoever.:

EXAMPLE 1

Anti-sun composition for the skin (oil-in-water emulsion)

    ______________________________________                                        Mixture (80/20) of cetylstearyl alcohol and                                                            7       g                                            cetylstearyl alcohol oxyethylenated with                                      33 moles of ethylene oxide, sold under the                                    name SINNOWAX AO by the company Henkel                                        Glycerol stearate        2       g                                            Cetyl alcohol            1.5     g                                            Polydimethylsiloxane: silicone DC200-350 cst                                                           1.5     g                                            from the company Dow Corning                                                  Octyl p-methoxycinnamate 4       g                                            Octyl 2-cyano-3,3-diphenyl-2-propenoate                                                                10      g                                            Microtitanium dioxide MT 100T from Tayca                                                               2       g                                            Silicone Fluid L650 from Wacker Silicone,                                                              1.18    g                                            with an amine index of 2.7 to 3.2 meq/g                                       Benzene-1,4-[di(3-methylidenecamphor-10-                                                               1       g                                            sulphonic)] acid                                                              Glycerol                 20      g                                            Preservatives qs                                                              Demineralized water qs   100     g                                            ______________________________________                                    

The emulsion is produced by adding the fatty phase, heated to around 80°C., to the aqueous phase which contains the preservatives and theglycerine, which has been brought to the same temperature, with rapidstirring.

EXAMPLE 2

Anti-sun composition for the skin: oil-in-water emulsion:

    ______________________________________                                        Mixture of glycerol stearate and polyethylene                                                           2       g                                           glycol stearate containing 100 moles of ethylene                              oxide, sold under the name ARLACEL 165 by the                                 company ICI                                                                   Glycerol stearate         2       g                                           Stearyl alcohol           1       g                                           Octyl 2-cyano-3,3-diphenyl-2-propenoate                                                                 7       g                                           2-hydroxy-4-methoxybenzophenone-5-sulphonic                                                             2       g                                           acid sold under the name UVINUL MS 40 by the                                  company BASF                                                                  Silicone Fluid L655 from WACKER SILICONE,                                                               5       g                                           having an amine index of 1.3 to 1.45 meq/g                                    Cetylhydroxyethylcellulose (Natrosol Plus                                                               0.4     g                                           Grade 330 CS from AQUALON)                                                    Glycerine                 9       g                                           Preservatives qs                                                              Demineralized water qs    100     g                                           ______________________________________                                    

This emulsion is produced according to the process described in Example1, the aqueous phase containing the thickener(cetylhydroxyethylcellulose), the preservatives and the glycerine.

EXAMPLE 3

Anti-sun composition for the skin: oil-in-water emulsion:

    ______________________________________                                        Mixture of glycerol stearate and polyethylene                                                            2      g                                           glycol stearate containing 100 moles of                                       ethylene oxide, sold under the name ARLACEL 165                               by the company ICI                                                            Glycerol stearate          2      g                                           Stearyl alcohol            1      g                                           Octyl p-methoxycinnamate   5      g                                           2-phenylbenzimidazole-5-sulphonic acid sold under                                                        4      g                                           the name EUSOLEX 232 by the company MERCK                                     Silicone Fluid L656 from WACKER SILICONE,                                                                11.23  g                                           having an amine index of 1.2 to 1.4 meq/g                                     Cetylhydroxyethylcellulose (Natrosol Plus                                                                0.4    g                                           Grade 330 CS from AQUALON)                                                    Glycerine                  9      g                                           Preservatives qs                                                              Demineralized water qs     100    g                                           ______________________________________                                    

This emulsion is produced according to the process described in Example2.

EXAMPLE 4

Anti-sun composition for the skin: water-in-oil emulsion:

    ______________________________________                                        ARLACEL 1689 from ICI (mixture of polyglycerol                                                           3.5    g                                           ricinoleate (3 moles) and Sorbitol oleate)                                    Liquid petroleum           10     g                                           Block copolymer of Dodecylglycol/ethylene                                                                1      g                                           glycol: Elfacos ST37 from AKZO (stabilizer)                                   Polydimethylsiloxane: Silicone DC 200-350 cst                                                            3      g                                           from DOW CORNING                                                              β-hydroxyoctacosanyl 12-hydroxystearate:                                                            5      g                                           Elfacos C26 from AKZO (stabilizer)                                            Benzene-1,4-[di(3-methylidenecamphor-10-                                                                 2      g                                           sulphonic)] acid                                                              Silicone Fluid L650 from WACKER SILICONE                                                                 2.37   g                                           having an amine index of 2.7 to 3.2 meq/g                                     Glycerine                  3      g                                           Preservatives qs                                                              Mixture of dimethiconol (13%) and octamethyl-                                                            5      g                                           cyclotetrasiloxane-decamethylcyclopentasiloxane                               (87%), sold under the name Q2-1401 by the                                     company DOW CORNING                                                           Demineralized water qs     100    g                                           ______________________________________                                    

This emulsion is prepared by adding the aqueous phase containing thepreservatives and the glycerine, heated to approximately 80° C., to thefatty phase, which has been brought to the same temperature, withvigorous stirring.

EXAMPLE 5

Anti-sun composition for the skin.

Oil-in-water emulsion in which the aqueous phase contains a nonionicvesicle dispersion.

A nonionic vesicle dispersion is prepared beforehand as follows: alamellar phase is formed by adding a quantity of hot water(approximately 80° C.) (15.2 g) equivalent to twice the quantity of thefollowing melted lipids:

Nonionic liquid of formula:

    ______________________________________                                        C.sub.12 H.sub.25 --[OC.sub.2 H.sub.3 (R)]--O--[C.sub.3 H.sub.5 --(OH)--O]     .sub.n--H                 6 g                                                ______________________________________                                    

in which:

--C₃ H₅ (OH)O--consists of a mixture of radicals: ##STR13## --O C₂ H₃(R)--consists of a mixture of radicals:

    --O--CHR--CH.sub.2 -- and --O--CH.sub.2 --CHR--

n is an average statistical value equal to 6

R is a mixture of C₁₄ H₂₉ and C₁₆ H₃₃ radicals.

    ______________________________________                                               Cholesterol                                                                           1.6 g                                                          ______________________________________                                    

After stirring for several minutes using an Ultra-Turrax and returningthe mixture to room temperature, a quantity of water at room temperature(22.8 g) which is equivalent to 3 times the quantity of the above lipidsand containing 5 g of glycerine is added to said mixture in order toform the vesicle phase, and the mixture is subsequently stirred forseveral minutes using an Ultra Turrax.

2 g of benzene-1,4-[di(3-methylidenecamphor-10-sulphonic)] acid are thenformed into a paste with 7.68 g of Rhodorsil Huile PL 1300 sold by thecompany Rhone-Poulenc and having an amine index of 0.92 meq/g, to whichare added the other components of the fatty phase: 15 g of liquidpetroleum and preservatives, and the mixture is brought to 70° C. Afterreturning to room temperature, this fatty phase is then emulsified bythe vesicle dispersion prepared above, and then finally the compositionis thickened by adding to it 0.2 g of cetylhydroxyethylcellulose(Natrosol Plus Grade 330 CS from Aqualon) and 0.2 g of hydroxypropylatedguar gum and preservatives, dissolved in the remaining amount of waterrequired to make the composition up to 100 g.

EXAMPLE 6

Beauty cream for the skin

The procedure of Example 5 is repeated but using 3 g of1,4[di(3-methylidenecamphor-10-sulphonic)] acid and 5 g ofpolydimethylsiloxane containing terminal primary amine groups, sold bythe company Goldschmidt under the name Tegomer A-SI-2120 with an amineindex of 1.95 meq/g, as a replacement for Rhodorsil Huile PL 1300 fromRhone-Poulenc.

EXAMPLE 7

Conditioner

    ______________________________________                                        30/70 cetyl/stearyl alcohol ethoxylated 33 EO                                                           1       g                                           30/70 cetyl/stearyl alcohol                                                                             4.5     g                                           2-octyl dodecanol         0.8     g                                           Glycerine                 0.8     g                                           50/50 cetyl/stearyl alcohol                                                                             2       g                                           Benzene-1,4-[di(3-methylidenecamphor-10-                                                                2       g                                           sulphonic)] acid                                                              Silicone Fluid L650 from WACKER silicone                                                                2.36    g                                           having an amine index of 2.7 to 3.2 meq/g                                     Preservatives qs                                                              Fragrance qs                                                                  Purified water qs         100     g                                           ______________________________________                                    

This conditioner is prepared in accordance with the process of Example1.

EXAMPLE 8

Anti-sun composition for the skin: oil-in-water emulsion

    ______________________________________                                        Mixture of glycerol stearate and polyethylene                                                            2      g                                           glycol stearate containing 100 moles of                                       ethylene oxide, sold under the name ARLACEL 165                               by the company ICI                                                            Liquid petroleum           10     g                                           Glycerol stearate          2      g                                           Stearyl alcohol            1      g                                           Glycerine                  9      g                                           Benzene-1,4-(di(3-methylidenecamphor-10-                                                                 3      g                                           sulphonic)) acid                                                              Rhodorsil Huile PL 1300 sold by                                                                          11.52  g                                           Rhone-Poulenc - amine index 0.92 meq/g                                        Cetylhydroxyethylcellulose (Natrosol Plus                                                                0.4    g                                           Grade 330 CS from Aqualon)                                                    Preservatives qs                                                              Water qs                   100    g                                           ______________________________________                                    

This emulsion is prepared in accordance with the process described inExample 2.

EXAMPLE 9

Anti-sun composition for the skin: oil-in-water emulsion

    ______________________________________                                        Mixture of glycerol stearate and polyethylene                                                            2      g                                           glycol stearate containing 100 moles of                                       ethylene oxide, sold under the name ARLACEL 165                               by the company ICI                                                            Liquid petroleum           10     g                                           Glycerol stearate          2      g                                           Stearyl alcohol            1      g                                           Glycerine                  9      g                                           2-hydroxy-4-methoxybenzophenone-5-sulphonic acid                                                         2      g                                           (Uvinul MS 40 from BASF)                                                      Rhodorsil Huile PL 1300 sold by                                                                          7.06   g                                           Rhone-Poulenc - amine index 0.92 meq/g                                        Cetylhydroxyethylcellulose (Natrosol Plus                                                                0.4    g                                           Grade 330 CS from Aqualon)                                                    Preservatives qs                                                              Water qs                   100    g                                           ______________________________________                                    

This emulsion is prepared in accordance with the process described inExample 2.

EXAMPLE 10

Anti-sun composition for the skin: oil-in-water emulsion

    ______________________________________                                        Mixture of glycerol stearate and polyethylene                                                            2      g                                           glycol stearate containing 100 moles of                                       ethylene oxide, sold under the name ARLACEL 165                               by the company ICI                                                            Liquid petroleum           10     g                                           Glycerol stearate          2      g                                           Stearyl alcohol            1      g                                           Glycerine                  9      g                                           2-Phenyl-benzimidazole-5-sulphonic acid:                                                                 4      g                                           Eusolex 232 from MERCK                                                        Silicone Fluid L 656 sold by WACKER                                                                      11.23  g                                           SILICONE - amine index 1.2 to 1.4 meq/g                                       Cetylhydroxyethylcellulose:                                                                              0.4    g                                           (Natrosol Plus Grade 330 CS from Aqualon)                                     Preservatives qs                                                              Water qs                   100    g                                           ______________________________________                                    

This emulsion is prepared according to the process described in Example2.

I claim:
 1. A cosmetic composition which is adapted to protect the userfrom ultraviolet radiation which comprises:(i) at least one hydrophilicagent which functions to screen ultraviolet radiation comprising atleast one sulphonic acid radical --SO₃ H, and (ii) at least oneamino-functional silicone derivative, and wherein said hydrophilic agentand said silicone derivative are comprised in a cosmetically acceptablevehicle.
 2. Composition according to claim 1, wherein the hydrophilicagent which screens ultraviolet radiation is a compound with a3-benzylidene-2-bornanone structure.
 3. Composition according to claim2, wherein the hydrophilic agent which screens ultraviolet radiationcorresponds to the following formula (I): ##STR14## in which: Z denotesa group of formula: ##STR15## n denotes 0 or an integer greater than orequal to 1 and less than or equal to 4R₁ represents one or moreidentical or different, linear or branched, alkyl or alkoxy radicalscontaining 1 to 4 carbon atoms.
 4. Composition according to claim 3,wherein the compound of formula (I) isbenzene-1,4-[di(3-methylidenecamphor-10-sulphonic)] acid.
 5. Compositionaccording to claim 2, wherein the hydrophilic agent which screensultraviolet radiation corresponds to the following formula (II):##STR16## in which R₂ denotes a hydrogen atom, a halogen atom, an alkylradical containing 1 to 4 carbon atoms or a --SO₃ H radicalR₃ and R₄denote a hydrogen atom or a --SO₃ H radical, at least one of theradicals R₂, R₃ or R₄ denoting the --SO₃ H radical and R₂ and R₄ beingunable simultaneously to denote a --SO₃ H radical.
 6. Compositionaccording to claim 5, wherein in the formula (II), R₂ denotes the --SO₃H radical in the para position of the benzylidenecamphor and R₃ and R₄each represent a hydrogen atom.
 7. Composition according to claim 5,wherein, in the formula (II), R₂ and R₄ each represent a hydrogen atomand R₃ denotes --SO₃ H.
 8. Composition according to claim 5, wherein, inthe formula (II), R₂ denotes the methyl radical in the para position ofthe benzylidenecamphor, R₄ denotes a radical represents the radical SO₃H and R₃ represents a hydrogen atom.
 9. Composition according to claim5, wherein, in the formula (II) R₂ denotes a chlorine atom in the paraposition of the benzylidenecamphor, R₄ denotes the --SO₃ H radical andR₃ denotes a hydrogen atom.
 10. Composition according to claim 5,wherein, in the formula (II), R₂ denotes the methyl radical in the paraposition of the benzylidenecamphor, R₄ denotes a hydrogen atom and R₃denotes the --SO₃ H radical.
 11. Composition according to claim 2,wherein the hydrophilic agent which screens ultraviolet radiationcorresponds to the following formula (III): ##STR17## in which: R₅ andR₇, which are identical or different, denote a hydrogen atom, a hydroxylradical, a linear or branched alkyl radical containing 1 to 8 carbonatoms or a linear or branched alkoxy radical containing 1 to 8 carbonatoms, at least one of the radicals R₅ and R₇ representing a hydroxyl,alkyl or alkoxy radical,R₆ and R₈, which are identical or different,denote a hydrogen atom or a hydroxyl radical, at least one of theradicals R₆ and R₈ denote the hydroxyl radical, with the proviso that,when R₅ and R₈ denote hydrogen and R₆ denotes the hydroxyl radical, R₇does not denote an alkoxy radical or a hydrogen atom.
 12. Compositionaccording to claim 11, wherein, in the formula (III), R₅ is a methylradical, R₆ is a hydrogen atom, R₇ is a tert-butyl radical and R₈ is ahydroxyl radical.
 13. Composition according to claim 11, wherein, in theformula (III), R₇ is a methoxy radical, R₆ is a hydrogen atom, R₇ is atert-butyl radical and R₈ is a hydroxyl radical.
 14. Compositionaccording to claim 11, wherein, in the formula (III), R₅ and R₇ eachdenote a tert-butyl radical, R₆ denotes a hydroxyl radical and R₈denotes a hydrogen atom.
 15. Composition according to claim 2, whereinthe hydrophilic agent which screens ultraviolet radiation corresponds tothe following formula (IV): ##STR18## in which R₉ denotes a hydrogenatom, a linear or branched alkyl radical containing 1 to 18 carbonatoms, a linear or branched alkenyl radical containing 3 to 18 carbonatoms, a group chosen from the group comprising: ##STR19## or a divalentradical: --(CH₂)_(m) -- or --CH₂ --CHOH--CH₂ --n being an integerbetween 1 and 6 (1≦n≦6) and m being an integer between 1 and 10 (1≦m≦10)R₁₀ denotes a hydrogen atom, an alkoxy radical containing 1 to 4 carbonatoms or a divalent radical --O-- which is linked to the radical R₉where the latter is also divalent, q denotes an integer equal to 1 or 2,it being understood that, if q is equal to 2, R₉ must denote a divalentradical, Y and Y' denote a hydrogen atom or a --SO₃ H radical, and atleast one of these radicals Y or Y' is different from hydrogen. 16.Composition according to claim 15, wherein, in the formula (IV), q isequal to 1, Y and R₁₀ each denote a hydrogen atom, R₉ denotes a methylradical and Y' in position 3 denotes a --SO₃ H radical.
 17. Compositionaccording to claim 15, wherein, in the formula (IV), q is equal to 1, Ydenotes a --SO₃ H radical, Y' denotes a hydrogen atom; R₁₀ denotes adivalent radical --O-- which is linked to R₉ denoting a methyleneradical.
 18. Composition according to claim 15, wherein, in the formula(IV), q is equal to 1, Y denotes a --SO₃ H radical, both Y' and R₁₀denote a hydrogen atom; R₉ denotes a methyl radical.
 19. Compositionaccording to claim 15, wherein, in the formula (IV), q is equal to 1, Ydenotes a --SO₃ H radical, Y' denotes a hydrogen atom; R₉ denotes amethyl radical and R₁₀ denotes a methoxy radical.
 20. Compositionaccording to claim 15, wherein, in the formula (IV), q is equal to 1, Ydenotes a --SO₃ H radical, both Y' and R₁₀ denote a hydrogen atom; R₉denotes a n-butyl radical.
 21. Composition according to claim 15,wherein, in the formula (IV), q is equal to 1, Y denotes a --SO₃ Hradical, Y' denotes a hydrogen atom; R₉ denotes a n-butyl radical andR₁₀ denotes a methoxy radical.
 22. Composition according to claim 2,characterized in that the hydrophilic agent which screens ultravioletradiation corresponds to the following formula (V): ##STR20## in which:R₁₁ denotes a hydrogen atom, a linear or branched, alkyl or alkoxyradical containing 1 to 6 carbon atoms or a --SO₃ H radical,R₁₂ denotesa hydrogen atom or a linear or branched, alkyl or alkoxy radicalcontaining 1 to 6 carbon atoms, R₁₃ denotes a hydrogen atom or a --SO₃ Hradical, at least one of the radicals R₁₁ to R₁₃ denotes a --SO₃ Hradical. X is an oxygen or sulphur atom or a group --NR--, R being ahydrogen atom or a linear or branched alkyl radical containing 1 to 6carbon atoms.
 23. Composition according to claim 22, wherein, in theformula (V), X denotes a --NH-- radical, R_(n) denotes a --SO₃ Hradical, and both R₁₂ and R₁₃ denote a hydrogen atom.
 24. Compositionaccording to claim 1, wherein the hydrophilic agent which screensultraviolet radiation is a compound of the formula (VI) ##STR21## inwhich R₁₄ and R₁₅, which are identical or different, denote a hydrogenatom or a linear or branched alkyl radical containing 1 to 8 carbonatomsa, b and c, which are identical or different, are equal to 0 or 1.25. Composition according to claim 24, wherein, in the formula (VI)a=b=c=0 and R₁₅ denotes a methyl radical.
 26. Composition according toclaim 1, wherein the hydrophilic agent which screens ultravioletradiation is a compound of the formula (VII) ##STR22## in which Xdenotes an oxygen atom or a --NH-- radicalR₁₆ denotes a hydrogen atom, alinear or branched, alkyl or alkoxy radical containing 1 to 8 carbonatoms or a group of formula (VIII) ##STR23## in which X', independentlyof X, denotes an oxygen atom or a --NH-- radical.
 27. Compositionaccording to claim 26, wherein, in the formula (VII), X denotes the--N-- radical and R₁₆ denotes a hydrogen atom.
 28. Composition accordingto claim 26, wherein, in the formula (VII), X denotes the --NH--radical, R₁₆ denotes the group of formula (VIII) with X' denoting the--NH-- radical.
 29. Composition according to claim 26, wherein, in theformula (VII), X denotes an oxygen atom, R₁₄ denotes the group offormula (VIII) with X' denoting an oxygen atom.
 30. Compositionaccording to claim 1, wherein the amino-functional silicone derivativehas an amine index of greater than 0.25 meq/gram.
 31. Compositionaccording to claim 30, wherein the amino-functional silicone derivativehas an amine index of greater than 0.50 meq/gram.
 32. Compositionaccording to claim 1, wherein the amino-functional silicone derivativeis a silicone derivative comprising a primary, secondary or tertiaryamine function.
 33. Composition according to claim 32, wherein thesilicone derivative comprises a primary amine function NH₂ which islinked to the principal chain via a pendant group, or in the α and ωposition on the principal chain.
 34. Composition according to claim 32,wherein the silicone derivative comprising a secondary amine function isan aminobispropyldimethicone compound.
 35. Composition according toclaim 32, wherein the silicone derivative comprising a tertiary aminefunction is the compound of structure ##STR24##
 36. Compositionaccording to claim 1, wherein said composition contains from 0.2 to 10%by weight of the hydrophilic agent which screens ultraviolet radiation,and preferably from 0.5 to 5%.
 37. Composition according to claim 1,wherein said composition contains the amino-functional siliconederivative in a proportion which is necessary for the neutralization ofat least 50% of the sulphonic acid functions of the hydrophilicscreening agent.
 38. Composition according to claim 1, wherein saidcomposition contains the amino-functional silicone derivative in aproportion which is necessary for the neutralization of 100% of thesulphonic acid functions of the hydrophilic screening agent. 39.Composition according to claim 1, wherein said composition additionallycontains one or more additional hydrophilic or lipophilic UVB and/or UVAsunscreens other than acidic hydrophilic screening agents. 40.Composition according to claim 39, wherein the additional sunscreens arechosen from cinnamates, salicylates, benzylidenecamphor derivatives,triazine derivatives, benzophenone derivatives, dibenzoylmethanederivatives, β,β-diphenylacrylate derivatives, p-aminobenzoic acidderivatives, menthyl anthranilate, polymer screening agents and siliconescreening agents.
 41. Composition according to claim 40, wherein theadditional sunscreens are chosen from the group consisting of4-tert-butyl-4'-methoxydibenzoylmethane, octyl2-cyano-3,3-diphenyl-2-propenoate and 3-(4-methylbenzylidene)camphor.42. Composition according to claim 40, wherein the additional sunscreensare chosen from the group consisting of 2-ethylhexyl p-methoxycinnamate,2,4,6-tris[p-(2'ethylhexyl-1'-oxycarbonyl) anilino]-1,3,5-triazine andoctyl 2-cyano-3,3-diphenyl-2-propenoate.
 43. Composition according toclaim 1, wherein said composition additionally contains coated ornon-coated metal oxide nanopigments.
 44. Composition according to claim1, wherein said composition additionally comprises cosmetic adjuvantschosen from fats, organic solvents, nonionic thickeners, emollients,antioxidants, opacifying agents, stabilizers, silicones other than theamino-functional silicone derivatives, anti-foaming agents,moisturizers, fragrances, preservatives, nonionic surfactants, fillers,sequestering agents, nonionic polymers, propellants, basifying oracidifying agents and dyes.
 45. Composition according to claim 1,wherein said composition constitutes a protective composition for thehuman skin or an anti-sun composition and is presented in the form of anonionic vesicle dispersion, emulsions, cream, milk, gel, cream gel,suspensions, dispersions, powder, solid stick, mousse or spray. 46.Composition according to claim 1, wherein said composition constitutes amake-up composition for the eyelashes, eyebrows or skin and is presentedin a solid or paste form, in an anhydrous or aqueous form, as anemulsion, suspension or dispersion.
 47. Composition according to claim1, which is used for the protection of hair against ultravioletradiation, characterized in that it is presented in the form of ashampoo, lotion, gel, emulsion, nonionic vesicle dispersion or hairlacquer.
 48. Composition according to claim 1, wherein said cosmeticallyacceptable vehicle is an emulsion of the oil-in-water type.
 49. Methodof cosmetic treatment of the skin and/or hair in order to protect themagainst the effects of UV radiation with wavelengths of between 280 and400 nm, said method comprising applying an effective quantity of asubstantive screening cosmetic composition as defined in claim
 1. 50.Screening combination comprising a hydrophilic screening agentcontaining at least one sulphonic acid radical according to claim 1, andan amino-functional silicone derivative.
 51. Combination according toclaim 50, wherein the amino-functional silicone derivative is present ina proportion which is necessary for the neutralization of at least 50%of the sulphonic acid functions of the hydrophilic screening agent. 52.Combination according to claim 50, wherein the amino-functional siliconederivative is present in a proportion which is necessary for theneutralization of 100% of the sulphonic acid functions of thehydrophilic screening agent.
 53. Use of the combination according toclaim 50 for the preparation of cosmetic compositions.